328449025 has 6 divisors (see below), whose sum is σ = 407276822. Its totient is φ = 262759200.

The previous prime is 328449013. The next prime is 328449031. The reversal of 328449025 is 520944823.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 51825601 + 276623424 = 7199^2 + 16632^2 .

It is not a de Polignac number, because 328449025 - 2²³ = 320060417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6568956 + ... + 6569005.

Almost surely, 2^328449025 is an apocalyptic number.

It is an amenable number.

328449025 is a deficient number, since it is larger than the sum of its proper divisors (78827797).

328449025 is a wasteful number, since it uses less digits than its factorization.

328449025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137971 (or 13137966 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 328449025 is about 18123.1626654952. The cubic root of 328449025 is about 689.9580069662.

The spelling of 328449025 in words is "three hundred twenty-eight million, four hundred forty-nine thousand, twenty-five".